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作者:

Ji, Kemeng (Ji, Kemeng.) | Dai, Hongxing (Dai, Hongxing.) (学者:戴洪兴) | Deng, Jiguang (Deng, Jiguang.) | Zhang, Lei (Zhang, Lei.) | Wang, Fang (Wang, Fang.) | Jiang, Haiyan (Jiang, Haiyan.) | Au, Chak Tong (Au, Chak Tong.)

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EI Scopus SCIE

摘要:

Three-dimensionally ordered macroporous (3DOM) cubic perovskite-type oxides SrFeO3-delta were prepared using the citrate acid-assisted poly(methyl methacrylate)-templating method in the presence of ethylene glycol, sucrose or L-lysine (denoted as SFO-0. SFO-Sucrose, and SFO-Lysine, respectively). It is found that the SrFeO3-delta samples possessed a 3DOM architecture and were high in surface area (34-61 m(2)/g). The porous SrFeO3-delta catalysts performed well in toluene combustion, with the SFO-0 sample exhibiting the highest catalytic activity (T-50% = 292 degrees C and T-90% = 340 degrees C at 20,000 mL/(g h)). The catalytic activity of the samples showed a good relationship with surface area, oxygen adspecies concentration, and low-temperature reducibility, all decrease in the order of SFO-0 > SFO-Lysine > SFO-Sucrose >> SFO-bulk. It is deduced that the good catalytic performance of the porous SrFeO3-delta materials is due to the good low-temperature reducibility, large surface area, and high oxygen adspecies concentration. (C) 2012 Elsevier B.V. All rights reserved.

关键词:

Toluene combustion Oxygen-deficient strontium ferrite Three-dimensional ordered macroporous perovskite-type oxide Colloidal crystal templating preparation method Low-temperature reducibility

作者机构:

  • [ 1 ] [Ji, Kemeng]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 2 ] [Dai, Hongxing]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 3 ] [Deng, Jiguang]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Lei]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Fang]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 6 ] [Jiang, Haiyan]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 7 ] [Au, Chak Tong]Hong Kong Baptist Univ, Ctr Surface Anal & Res, Kowloon, Hong Kong, Peoples R China
  • [ 8 ] [Au, Chak Tong]Hong Kong Baptist Univ, Dept Chem, Kowloon, Hong Kong, Peoples R China

通讯作者信息:

  • 戴洪兴

    [Dai, Hongxing]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China

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来源 :

APPLIED CATALYSIS A-GENERAL

ISSN: 0926-860X

年份: 2012

卷: 425

页码: 153-160

5 . 5 0 0

JCR@2022

ESI学科: CHEMISTRY;

JCR分区:1

中科院分区:2

被引次数:

WoS核心集被引频次: 58

SCOPUS被引频次: 62

ESI高被引论文在榜: 0 展开所有

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